Pneumatic bobbin stripper



Jan. 7, 1930. .J. E. MENARD PNEUMATIC BOBBIN STRIPPER Filed June 9, 192

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Patented Jan. 7, 1930 UNITED STATES JAMES E. MENARD, OF BLACKSTONE, MASSACHUSETTS, ASSIGNOR TO THE TERRELL MACHINE COMPANY, OF CHARLOTTE, NORTH CAROLINA, A CORPORATION OF NORTH CAROLINA Application filed June 9,

The invention has relation to the class of appliances, apparatuses, and machines, in tended to be employed for removing, from bobbins employer: in the processes by which fibrous materials are converted into yarns or threads, and in weaving, the so-called waste constituted by residual portions of rovings, or yarns, as the case may be, remaining upon such bobbins at diFerent stages in the procedure. Such appliances and machines, in general, are termed bobbin-strippers or bobbin-stripping machines.

More particularly, the invention relates to pneumatic bobbin-strippers or stripping machines. That is to say, it is an improvement in machines or apparatus designed for effecting the stripping of waste from bobbins through the action of moving air.

Accordingly, the invention consists in a pneumatic bobbin-stripper characterized as described and claimed herein. Stated in general terms, the invention provides a pneumatic bobbin-stripper having means ior subjecting a bobbin carrying waste to a moving current of air which strips such waste from the bobbin lengthwise of the latter.

The drawings show an illustrative embodiment of the invention.

In the drawings,

Fig. 1 is a perspective of the said embodiment, omitting however the source of compressed air.

Fig. 2 is a perspective on a somewhat larger scale than Fig. 1, showing the parts more immediately involving the novelty of the invention.

Fig. 3 is a plan view, on a different scale, of the pneumatic head of the machine or ap' paratus shown in Fig. 1.

The machine shown in the drawings has a bobbin-entrance, as 1, Figs. 2 and 3, within which a bobbin to be stripped may be introduced; also, a flue having walls, as 2, 2, Fig. 2, circumscribing the position of a bobbin entered lengthwise through the said bobbin-entrance; also, a system of jet-devices, as 3, 3, &c., Fig. 2 respectively having outlets with circumscribing mouths, for delivering compressed air in concentrated jets directed lengthwise of the bobbin, against the bobbin- PNEUMATIC BOBBIN STRIIBPER Serial No. 284,107.

exterior; and, also, guides 4, 4, &c., for guiding and positioning the bobbin with relation to the series of jet-devices 3, 3, &c., in passing through the bobbin-entrance and into the flue. In addition, it includes a cage 5 for reception and retention of the material stripped from the bobbins operated upon and blown through the flue.

The bobbin-entrance in this instance is constituted by a hole in a table 6, the latter being located at the same end of the flue as the jet-device or devices 3,3, 620.

In this instance the bobbin-guides 4, 4, &c., are constituted by small bars or blocks mounted upon the said table 6, and held in place thereon by means of screws or bolts 41, 41, &c., occupying slots 42, 42, &c., in the said bars or blocks, washers 43, 43, &c., being interposed between the heads of the said screws or bolts and the bars or blocks. The slots 42, 42, &c., in the bobbin-guides permit the latter to be adjusted radially as may be required, for the purpose of locating their bobbinguiding portions where it is necessary they should be located in order to guide and position the bobbin properly with relation to the jet-devices; The bobbin-guides 4, 4, &c., are shown formed with concave (i/shaped) inger ends to fit the cylindrical barrel of a bob- The jet-devices 3, 3, &c., are constituted by nozzles having their delivery portions disposed properly for directing concentrated streams of air lengthwise of the flue and a bobbin entered into the flue by way of the entrance 1, and so as to act against the bobbin-exterior. Compressed air is supplied to the nozzles by way of piping 31, 31, &c., extending to the nozzles from a distributor head 32, Fig. 1, that is in communication by means of a pipe 33 with a source (not shown) of compressed air.

The flue is shown of transverse internal dimensions suitable for confining the air within the same closely around the inserted bobbin, to enhance the efiectiveness of the moving air-jets in stripping waste from the bobbin. The flue serves as a conduit for carrying the strippings to and discharging them into the cage 5. In some instances the flue may be dispensed with, by omitting the walls 2 2 &c.

The machine shown in the drawings is designed more particularly for stripping from roving bobbins residues of rovings left thereon after the bulk of the roving contents originally Wound upon said bobbins has been drawn ofl therefrom in certain operations in the manufacture of yarn. The same principles are capable of being utilized for the purpose of removing residues of yarn from the bobbins employed in the process of Weaving, in the shuttles of looms in which weft replenishment is effected automatically.

In the use of the illustrated machine a bobbin to be stripped is moved endwise into the entrance and flue, either manually or by automatic means, and at once withdrawn. The stripping begins to be elfected at once as the bobbinenters and is completed promptly.

In the case of a machine in which as in the drawings the jet-devices are in a series dis tributed at diflerent points around the location of a bobbin which ispresented in position to be stripped, the various jets act simultaneously upon different sides of the bobbin. Thereby an effective and rapid stripping of the waste from the bobbin is effected. In some instances the number of j et-devices may be smaller than in the illustrated instance, and for certain classes of work a single jetdevice will be sufficient for performing the re uired stripping function.

Vhat is claimed as the invention is 1. A pneumatic bobbin-stripper comprising a bobbin-entrance, a flue circumscribing the position of a bobbin entered lengthwise through the said bobbin-entrance, and a jetdevice having a delivery-outlet from which compressed air is projected in a concentrated jet against the bobbin-exterior.

2. A pneumatic bobbin-stripper comprising a bobbin-entrance, a flue circumscribing the position of a bobbin entered lengthwise thereof through the said bobbin-entrance,

and a plurality of jet-devices respectively having delivery-outlets from which compressed air is projected in a plurality of concentrated jets against the bobbin-exterior.

3. A pneumatic bobbin-stripper comprising a bobbin-entrance, a flue surrounding the position of a bobbin entered lengthwise through the said bobbin-entrance, and a nozzle with outlet through which air in a concentrated jet is projected against the bobbinexterior.

4. A neumatic bobbin-stripper comprising a bo bin-entrance, a flue surrounding the position of a bobbin entered lengthwise through the said bobbin-entrance, and a plurality of nozzles converging indifferent di rections toward the bobbin and through which a plurality of concentrated jets of air is projected against different sides of the bobbin-exterior.

having an outlet through which air in a concentrated jet is projected against the bobbin-exterior, and means whereby the bob- 7 bin is guided relative to the said nozzle in passing through the said bobbin-entrance and into the said flue.

6. A pneumatic bobbin-stripper comprising a bobbin-entrance, a flue surrounding the position of a bobbin entered lengthwise through the said bobbin-entrance, a pluralit of nozzles respectively having outlets througii Which a plurality of concentrated jets of air is projected against different sides of the bobbin-exterior, and bobbin-guiding means whereby the bobbin is guided in centralized relation to the said nozzles in passing into ghe said bobbin-entrance and into the said 7. A pneumatic bobbin-stripper comprising bobbin-positioning means, and a nozzle having an outlet located laterally of the position of a bobbin presented for being stripped, and arranged to deliver against the exterior of the bobbin a concentrated jet of air directed lengthwise of the bobbin.

8. A neumatic bobbin-stripper comprising bob in-positioning means, and a plurality of nozzles located at different sides of a bobbin presented in position for being stripped, said nozzles respectively having outlets arranged to deliver against the bobbin-exterior a plurality of concentratedjets of air directed lengthwise of the bobbin.

JAMES E. MENARD. 

